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101 lines (79 loc) · 2.49 KB
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package src.thinkinginjava.Array16;
import java.util.Arrays;
/**
* Created by Ryan on 2017/2/22.
*/
public class ArrayTest {
public void getArray(int[] ints) {
System.out.println(ints.toString());
}
public String[] getStringArray(int n) {
String[] strings = new String[n];
for (int i = 0; i < strings.length ; i++) {
strings[i] = i + "!";
}
return strings;
}
public int[][] getIntArray(int a, int b) {
int[][] ints = new int[a][];
for (int i = 0; i < a; i++) {
ints[i] = new int[b];
for(int j = 0; j < b; j++) {
ints[i][j] = i*j;
}
}
return ints;
}
public void printArray(int[][]...ints) {
System.out.println(Arrays.deepToString(ints));
}
/**
public void printArray(int[][][]... ints) {
System.out.println(Arrays.deepToString(ints));
}
*/
public int[][][] getTripleArray(int a, int b,int c) {
int[][][] ints = new int[a][][];
for (int i = 0; i < a; i++) {
ints[i] = new int[b][];
for(int j = 0; j < b; j++) {
ints[i][j] = new int[c];
for(int n = 0; n < c; n++) {
ints[i][j][n] = i*j*n;
}
}
}
return ints;
}
public void testDoubleArray() {
int[][] a = new int[5][6];
for (int i = 0; i < a.length ; i++) {
for (int j = 0; j < a[i].length; j++) {
a[i][j] = i * j;
}
}
System.out.println(Arrays.deepToString(a));
}
public static void main(String[] args) {
ArrayTest arrayTest = new ArrayTest();
/**
arrayTest.getArray(new int[] {1,2,3,4,5});
int[] ints = {1,2,3,4,5};
int[] ints1 = new int[10];
arrayTest.getArray(ints);
arrayTest.getArray(ints1);
Arrays.toString(arrayTest.getStringArray(10));
src.thinkinginjava.String13[][] strings = {
{"1","2","3",},{"4","5","6"},{"7"}
};
System.out.println(Arrays.deepToString(strings));
*/
arrayTest.printArray(arrayTest.getIntArray(5,6));
arrayTest.printArray(arrayTest.getTripleArray(5,6,7));
arrayTest.testDoubleArray();
String[] a = {"a","b","c","d","e"};
String[] b = {"e","f", "g", "h", "k"};
System.arraycopy(a, 1,b,1,4);
System.out.println(b[0] + b[1] + b[2] + b[3] + b[4]);
}
}